Oil gun



H. E. sc

Oct. 30

OI N

Filed April 27, 1934 2 Sheets-Sheet l M? ln/oU M o H H. E. SCHLEIF Oct. 30,- 1934.

OIL GUN Inventor Patented Oct. 30, 1934 UNITED STATES ATENT OFFICE 3 Claims.

This invention relates broadly to lubricant dispensing devices and has more particular reference to a device of this kind adapted for supplying oil or other lubricant to various parts of machinery and the like.

An object of the invention is to provide a device of this character embodying the general form of a pistol so that the same may be easily carried in the hand when in use and can be employed with greater facility than the conventional forms of oil cans now in general use.

The invention together with its objects and advantages will be best understood from a study of the following description taken in connection with the accompanying drawings wherein:

Figure l is a side elevational view of the device.

Figure 2 is a sectional view therethrough.

Figure 3 is an enlarged fragmentary sectional view showing the inner member of the spout extended.

Figures 4 and 5 are sectional views taken substantially on the lines 4-4 and 5-5 respectively of Figure 1.

Figure 6 is a perspective view of the trigger.

Referring to the drawings by reference numerals it will be seen that the device, as hereinbefore stated is constructed in the general form of a pistol and embodies a barrel 10 having a depending hollow hand grip 11 preferably formed integral with the barrel l0, and both the barrel and the hand grip being formed of sheet metal or other suitable material. Extending longitudinally through the barrel 10 is a spout which includes an outer fixed tube or cylinder 12 and an inner tube or cylinder 13 that is slidable longitudinally of the tube 13 and is enlarged at its inner end as at 14 to have a snug sliding fit within the outer tube or cylinder 12. On its free or outer end the inner tube 13 is provided with a discharge nozzle 15, the same being preferably integral with the tube 13. On its outer end the tube 12 is threaded for accornmodating a threaded cap 16 that serves as a protecting element for the nozzle as clearly shown in Figure 2.

The device is provided with a filling opening 1'7 located preferably where shown, and for this opening there is provided a plug 18 that has a vent passage therethrough controlled by a ball check valve 19.

Arranged within the grip 11 is a pump which includes a cylinder 20 that extends transversely of the grip and is provided with a depending intake 21 equipped at its lower end with a ball check valve 22, and an upstanding outlet 23 in which operates a ball check valve 24. The outlet 23 15 (Eli. 22l-51) connected with the inner end of the tube 12 through the medium of a suitable nipple 25.

Operating within the pump cylinder 20 is a piston 26 that is normally urged in one direction through the medium of a coil spring 27. For the piston 26 there is provided a rod 28 that at its outer end is suitably connected with a trigger 29. The trigger 29 as shown is preferably in the form of a ring integral with a slide 30 that operates in a channel guide rail 31 extending lengthwise oi the barrel 10 at the underside of the barrel as shown clearly in Figures 1 and 2.

From the above it will be seen that by repeatedly forcing the piston 26 inwardly against the action of spring 27, and then allowing the spring to return the trigger 29 and piston 26 to the normal position, or to the position shown in Figure 2 the lubricant in the grip 11 will be drawn through the valve 22 and inlet 21 into the barrel 20, and from the barrel forced through the 7 outlet 23 and nipple 25 through the tubes 12 and 13 of the spout to discharge through the nozzle 15 on to the part to be lubricated. Manifestly the forcing of the piston 26 inwardly against the action of the spring 2'? can be conveniently accomplished by engaging the finger with the trigger 29.

When desired the tube 13 of the spout may be drawn outwardly to the position shown in Figure 3 without in any Wise detracting from the effi- 8 cient operation of the device. Obviously with the tube 13 in projected position an application of the lubricant to parts otherwise not accessible may be had.

Having thus described my invention, what I claim as new is:

1. In a lubricating device of the character described, a barrel and a hand grip formed integral with the barrel adjacent the end of the latter, a spout extending longitudinally through the barrel, pump means arranged within the hand grip and connected with the spout for drawing lubricant from the hand grip and subsequently forcing the lubricant through the spout, said pump means including a reciprocating piston, and trig:- ger mechanism mounted at the junction of the barrel and hand grip and operatively connected with the piston for reciprocating the latter, said trigger mechanism including a channel guide extending longitudinally of the barrel, a slide operating in said guide and provided with a finger accommodating member, and a rod connecting said member with the piston.

2. In a lubricant device of the character described, an elongated tubular body, a hand grip formed integral with the body adjacent one end thereof, a spout extending longitudinally through the body and including a fixed tubular section and an inner section slidably fitting within the fixed section and movable relative thereto through the end of the body remote from the hand grip, pump means arranged within the hand grip and having a conduit connection with the fixed section of the spout for forcing the lubricant from the hand grip through the spout, and including a fixed cylinder, a piston operating in the cylinder, a rod for the piston, a spring arranged within the cylinder and normally urging the piston in one direction,'and finger accommodating means on the outer end of the piston rod, said finger accommodating means including a ring member, a slide re'zaora integral with the ring member, and guide means on the barrel and with which said slide is engaged.

3. A lubricant dispenser having the general form of a pistol embodying a barrel and a hand grip integral with the barrel, spout means extending longitudinally through the barrel, pump means arranged within the hand grip and connected with the spout for feeding lubricant under pressure from the hand grip through the spout, and trigger means for manually operating the pump means including a guide on the barrel, a slide operating in the guide, and a finger member carried by the slide and operatively connected with the pump.

HENRY E. scram. 

